US Bridges

SR 0173 over Slippery Rock Creek

Good

Butler County, Pennsylvania · 2.3 Mi. N. SR 8 Intersec. · Structure no. 000000000046572

Built
2011
14 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
198 ft
1 main span
Daily traffic
5,524
2023 count
Owner
State
State Highway Agency

About this bridge

SR 0173 over Slippery Rock Creek is a steel stringer/multi-beam or girder carrying SR 0173 over Slippery Rock Creek in Butler County, Pennsylvania. It was built in 2011, so it is 14 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,524 vehicles a day, roughly 13% of them trucks, projected to reach 6,929 by 2032. The structure is 198 ft (60.4 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 0173
CrossesSlippery Rock Creek
Location2.3 Mi. N. SR 8 Intersec.
RouteState Highway 173
CountyButler County
StatePennsylvania
Coordinates41.03715, -80.02989
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.5 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length198 ft (60.4 m)
Longest span197 ft (60 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,524 (2023)
Projected traffic6,929 by 2032
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 0173 over Slippery Rock Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is SR 0173 over Slippery Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2022.

How much traffic does SR 0173 over Slippery Rock Creek carry?

About 5,524 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SR 0173 over Slippery Rock Creek?

The structure is 198 ft (60.4 m) long with a longest span of 197 ft (60 m) and a deck 41 ft wide.

Who owns SR 0173 over Slippery Rock Creek?

It is owned by the State Highway Agency.